Elastic gusset sleeping bag

Abstract

An elastic gusset sleeping bag that has an elastic gusset side panels to join a top and a bottom panel of the sleeping bag. The elastic gusset provides mobility and freedom of movement for a user contained with the sleeping bag. A vertical height of the elastic gusset is selected to define an interior chamber of the sleeping bag to accommodate various body sizes of a user. The elastic gusset permits the sleeping bag to accommodate various body types, while utilizing identically formed top and bottom panels to facilitate efficient manufacturing of the sleeping bag.

What is claimed is: 
     
         1 . A sleeping bag, comprising:
 a top panel and a bottom panel formed as substantially mirrored halves generally conforming to a body shape of a user; and   an elastic gusset interposed between and joined with a peripheral side edge of each of the top panel and the bottom panel, defining an interior chamber for containing the user.   
     
     
         2 . The sleeping bag of  claim 1 , wherein the top panel, the bottom panel, and the elastic gusset define a hood area to cover a user's head area. 
     
     
         3 . The sleeping bag of  claim 2 , wherein each of the top panel, the bottom panel, and the elastic gusset are formed as a plurality of layers defining a containment area adapted to contain an insulating fil. 
     
     
         4 . The sleeping bag of  claim 3 , further comprising:
 the insulating fill carried within the containment area.   
     
     
         5 . The sleeping bag of  claim 4 , further comprising:
 a quilted stitching to contain the insulating fill in a dispersed relation within the containment area.   
     
     
         6 . The sleeping bag of  claim 1 , further comprising:
 a zipper attached along the peripheral side edge of the top panel to releasably join the top panel with the elastic gusset, the zipper is operable by to selectively open and close the interior chamber to allow the user to ingress and egress the sleeping bag.   
     
     
         7 . The sleeping bag of  claim 6 , further comprising:
 a drawstring carried within a sleeve defined laterally across an upper aspect of the top panel; and   a drawstring pull is operable to cinch the drawstring and draw the upper aspect of the top panel about a user's body.   
     
     
         8 . The sleeping bag of  claim 7 , further comprising:
 a hood integrally formed with the sleeping bag; and   the drawstring is operable to draw the hood about a user's head.   
     
     
         9 . The sleeping bag of  claim 8 , further comprising:
 a pillow integrally formed with the interior chamber.   
     
     
         10 . The sleeping bag of  claim 9 , further comprising:
 one or more pockets defined within the interior chamber.   
     
     
         11 . The sleeping bag of  claim 1 , wherein one or more of the top panel and the bottom panel are formed of an elastic material. 
     
     
         12 . The sleeping bag of  claim 1 , wherein a height of the elastic gusset is selected to define the interior chamber according to a body size of the user.